Pfannenberg highlights the unique PF Series Filterfans 4.0, which provide an unrivaled airflow, guarantee Nema Type 12 protection and boasts a 300 percent longer lifetime than conventional filters.

Greenheck’s Model AER sidewall fan is a direct-drive fan with a cast aluminum propeller. The AER model is available in four sizes: 20, 24, 30 and 36 inches. 

Tjernlund Products has expanded its product line with destratification ceiling fans, which are designed to recirculate trapped air in high-ceiling areas. 

Tjernlund Products’ Duct Booster Fans are designed for easy installation within heating and cooling ducts to increase the flow of conditioned air to desired areas.

Greenheck makeup-air models DGX and MSX can now be configured with a direct-drive, backward-curved plenum supply fan.

Greenheck’s eCAPS Engineer Application Suite now includes fans and louvers. As a free online product selection program, eCAPS allows engineers to compare multiple models of HVAC market equipment simultaneously.

Tjernlund Products Inc. offers a pair of energy-saving fans that are capable of automatically and simultaneously ridding basements or other areas of stale, musty or smelly air and drawing in fresh outside air. 

Continental Fan’s MFT mixed flow in-line fans are designed for residential and light-commercial ventilation applications.

Tjernlund Products says its Duct Booster line is ideal for combating airflow problems in spaces that are hard to heat or cool.

Tjernlund Products Inc. has updated its free resource CD with thousands of pages of data.